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// tiffstream.hh -- image streams producing TIFF files
// Copyright (C) 2008, 2009 SEIKO EPSON CORPORATION
//
// This file is part of the 'iscan' program.
//
// The 'iscan' program is free-ish software.
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation;
// either version 2 of the License or at your option any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of FITNESS
// FOR A PARTICULAR PURPOSE or MERCHANTABILITY.
// See the GNU General Public License for more details.
//
// You should have received a verbatim copy of the GNU General Public
// License along with this program; if not, write to:
//
// Free Software Foundation, Inc.
// 59 Temple Place, Suite 330
// Boston, MA 02111-1307 USA
//
// As a special exception, the copyright holders give permission
// to link the code of this program with the esmod library and
// distribute linked combinations including the two. You must obey
// the GNU General Public License in all respects for all of the
// code used other than esmod.
#ifndef iscan_tiffstream_hh_included
#define iscan_tiffstream_hh_included
#ifndef __cplusplus
#error "This is a C++ header file; use a C++ compiler to compile it."
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "imgstream.hh"
#if HAVE_TIFFIO_H
#include <tiffio.h>
#include <cstdarg> // for error and warning handlers
#endif
namespace iscan
{
using std::string;
class tiffstream : public imgstream
{
public:
typedef basic_imgstream::byte_type byte_type;
typedef basic_imgstream::size_type size_type;
tiffstream (FILE *fp, const string& name);
virtual ~tiffstream (void);
virtual imgstream& write (const byte_type *line, size_type n);
virtual void next (void);
static bool is_usable (void);
private:
void set_tags (void);
void check_consistency (void) const;
void init (const string& name);
FILE *_stream;
static bool validate (lt_dlhandle h);
struct tiff_lib_handle
{
bool is_usable;
string message;
lt_dlhandle lib;
#if HAVE_TIFFIO_H
fundecl (TIFF *, Open, const char *, const char *);
fundecl (TIFF *, FdOpen, const int, const char *, const char *);
fundecl (void, Close, TIFF *);
fundecl (int, WriteDirectory, TIFF *);
fundecl (int, WriteScanline, TIFF *, tdata_t, uint32, tsample_t);
fundecl (int, Flush, TIFF *);
fundecl (int, SetField, TIFF *, ttag_t, ...);
fundecl (TIFFErrorHandler, SetErrorHandler, TIFFErrorHandler);
fundecl (TIFFErrorHandler, SetWarningHandler, TIFFErrorHandler);
#endif /* HAVE_TIFFIO_H */
};
static tiff_lib_handle *lib;
#if HAVE_TIFFIO_H
TIFF *_tiff;
uint32 _row;
#endif
};
} // namespace iscan
#endif // iscan_tiffstream_hh_included
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